Cannot load world without crashing! [FIXED]

I stepped in front of the Ender Dragon and now it will not let me into my world

Here is the crash report

Thanks in advance!

---- Minecraft Crash Report -------- Minecraft Crash Report ----
WARNING: coremods are present: CoreMod (Aroma1997Core-1.12.2-1.3.0.2.jar) Inventory Tweaks Coremod (InventoryTweaks-1.63.jar) EnderCorePlugin (EnderCore-1.12.2-0.5.35.jar) ForgelinPlugin (Forgelin-1.7.4.jar) CTMCorePlugin (CTM-MC1.12.2-0.3.2.18.jar) LoadingPlugin (Quark-r1.4-125.jar) LibrarianLib Plugin (librarianlib-1.12.2-4.11.jar) OpenModsCorePlugin (OpenModsLib-1.12.2-0.11.5.jar)Contact their authors BEFORE contacting forge
// Hi. I'm Minecraft, and I'm a crashaholic.
Time: 7/26/18 8:25 PMDescription: Updating screen events
java.lang.IllegalStateException: failed to create a child event loop at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88) at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58) at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47) at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:58) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59) at net.minecraft.network.NetworkSystem$1.func_179280_b(NetworkSystem.java:52) at net.minecraft.network.NetworkSystem$1.func_179280_b(NetworkSystem.java:49) at net.minecraft.util.LazyLoadBase.func_179281_c(SourceFile:10) at net.minecraft.network.NetworkSystem.func_151270_a(NetworkSystem.java:140) at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2412) at net.minecraftforge.fml.client.FMLClientHandler.tryLoadExistingWorld(FMLClientHandler.java:728) at net.minecraft.client.gui.GuiListWorldSelectionEntry.func_186777_e(GuiListWorldSelectionEntry.java:249) at net.minecraft.client.gui.GuiListWorldSelectionEntry.func_186774_a(GuiListWorldSelectionEntry.java:199) at net.minecraft.client.gui.GuiListWorldSelectionEntry.func_148278_a(GuiListWorldSelectionEntry.java:163) at net.minecraft.client.gui.GuiListExtended.func_148179_a(SourceFile:41) at net.minecraft.client.gui.GuiWorldSelection.func_73864_a(SourceFile:117) at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:533) at net.minecraft.client.gui.GuiWorldSelection.func_146274_d(SourceFile:49) at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:501) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1757) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1096) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)Caused by: io.netty.channel.ChannelException: failed to open a new selector at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:157) at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:149) at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:127) at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:36) at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84) ... 30 moreCaused by: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68) at java.security.AccessController.doPrivileged(Native Method) at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170) at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50) at java.nio.channels.Pipe.open(Pipe.java:155) at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127) at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44) at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:155) ... 34 moreCaused by: java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:437) at sun.nio.ch.Net.bind(Net.java:429) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67) at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:124) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83) ... 42 more